Chifukwa cha zokutira kuchokera ku zida za diamondi za electroplating

Zida za diamondi za electroplated zimaphatikizapo njira zambiri popanga, njira iliyonse siyokwanira, imapangitsa kuti zokutira kugwe.
Zotsatira za chithandizo cha pre-plating
Njira yochizira matrix achitsulo musanalowe mu thanki yoyikira imatchedwa pre-plating treatment. Chithandizo cha pre-plating chimaphatikizapo: kupukuta kwamakina, kuchotsa mafuta, kukokoloka ndi masitepe oyambitsa. Cholinga cha chithandizo cha pre-plating ndikuchotsa burr, mafuta, filimu ya oxide, dzimbiri ndi khungu la oxidation pamwamba pa matrix, kuti awonetsere chitsulo cha matrix kuti chikule chitsulo chachitsulo nthawi zonse ndikupanga mphamvu yomangirira ya intermolecular.
Ngati chithandizo cha pre-plating sichili chabwino, pamwamba pa masanjidwewo ali ndi filimu yopyapyala kwambiri yamafuta ndi filimu ya okusayidi, mawonekedwe achitsulo achitsulo cha matrix sangathe kuwululidwa bwino, zomwe zingalepheretse kupanga zitsulo zokutira ndi matrix zitsulo, zomwe zimangolowetsa makina, mphamvu yomangiriza imakhala yosauka. Chifukwa chake, kusakonzekera bwino musanawonjezeke ndiye chifukwa chachikulu chakuthira kwa zokutira.

Zotsatira za plating

Njira yothetsera plating imakhudza mwachindunji mtundu, kuuma ndi kuvala kukana kwa zitsulo zokutira. Ndi magawo osiyanasiyana ndondomeko, makulidwe, kachulukidwe ndi nkhawa ❖ kuyanika zitsulo crystallization akhoza kulamulidwa.

Popanga zida za diamondi electroplating, anthu ambiri amagwiritsa ntchito faifi tambala kapena faifi tambala-cobalt aloyi. Popanda chikoka cha plating zonyansa, zinthu zomwe zimakhudza kukhetsa zokutira ndi:
(1) Chikoka cha kupsinjika kwamkati Kupsinjika kwamkati kwa zokutira kumapangidwa panthawi ya electrodeposition, ndipo zowonjezera mu mafunde osungunuka ndi zinthu zawo zowonongeka ndi hydroxide zidzawonjezera kupsinjika kwamkati.
Kupsinjika kwa macroscopic kumatha kuyambitsa thovu, kusweka ndi kugwa kwa zokutira posungira ndikugwiritsa ntchito.
Kwa nickel plating kapena nickel-cobalt alloy, kupsinjika kwamkati kumakhala kosiyana kwambiri, kukweza kwa chloride, kumapangitsanso kupsinjika kwamkati. Kwa mchere waukulu wa nickel sulfate coating solution, kupsinjika kwamkati kwa watt ❖ kuyanika yankho ndikocheperako kuposa yankho la zokutira zina. Powonjezera organic luminent kapena wochotsa kupsinjika, kupsinjika kwakukulu kwamkati kwa zokutira kumatha kuchepetsedwa kwambiri ndipo kupsinjika kwamkati kakang'ono kumatha kuwonjezeka.

 

(2) Zotsatira za kusinthika kwa haidrojeni mu njira iliyonse yopangira plating, mosasamala kanthu za mtengo wake wa PH, nthawi zonse pamakhala kuchuluka kwa ayoni a haidrojeni chifukwa cha kupasuka kwa mamolekyu amadzi. Choncho, pamikhalidwe yoyenera, mosasamala kanthu za plating mu electrolyte acidic, ndale, kapena alkaline, nthawi zambiri pamakhala mpweya wa haidrojeni mu cathode pamodzi ndi mpweya wachitsulo. Ma ayoni a haidrojeni akachepa pa cathode, mbali ina ya haidrojeni imatuluka, ndipo mbali ina imalowa muzitsulo za matrix ndi zokutira mu mkhalidwe wa atomiki wa haidrojeni. Imasokoneza latisi, kuchititsa kupsinjika kwakukulu kwamkati, komanso kumapangitsa kuti zokutira ziwonongeke kwambiri.
Zotsatira za plating
Ngati kupangidwa kwa njira ya electroplating ndi zotsatira zina zoyendetsera ndondomeko sizikuphatikizidwa, kulephera kwa mphamvu mu ndondomeko ya electroplating ndi chifukwa chachikulu cha kutaya kwa kuyanika. Njira yopanga ma electroplating ya zida za diamondi ya electroplating ndiyosiyana kwambiri ndi mitundu ina yamagetsi. Njira yopangira zida za diamondi ya electroplating imaphatikizapo plating yopanda kanthu (m'munsi), zokutira mchenga ndi kukhuthala. Munjira iliyonse, pali kuthekera kwa matrix kusiya yankho la plating, ndiko kuti, kuzima kwanthawi yayitali kapena kwakanthawi kochepa. Choncho, ntchito ndondomeko wololera, ndondomeko akhoza kuchepetsa zikamera wa ❖ kuyanika kukhetsa chodabwitsa.

Nkhaniyi idasindikizidwanso kuchokera ku "China Superhard Materials Network"